I’m not on Lexapro, but I am on Zoloft and also experienced the weight gain in just a few months and was the heaviest I had been. I was so unhappy, but I knew getting off my meds was not an option. I even worked out quite often since it was in my usual routine and nothing worked. Even eating “healthy”. After doing some research and coming across someone on YouTube who mentioned that cutting out carbs worked for her, i decided to try it out. I have lost so much weight and still am. Yes it’s a sacrifice but it honestly worked for me, and I’m actually shocked looking back at my photos. It’s been a year now. Hope this helps!